Blue color | OLED-Info

US and Taiwan researchers call for the adoption of healthier light technologies

Researchers from Taiwan's National Tsing Hua University (NTHU) and lighting expert Prof. George C. Brainard (one of the principle investigators of the SSL program for the International Space Station) have teamed up for a public call for the adoption of healthier lights.

Good lights save life (NTHU & ISS)

The researchers aim to collaboration to accelerate the development of healthier lights, which are connected to a range of health problems, including breast and prostate cancers. NTHU's blue-light free candle-light OLEDs may prove to be a good solution to night time lighting.

Samsung researchers study the degradation of blue PHOLED materials, offer new design strategies for longer lasting blue emitters

Researchers from Samsung Electronics and the Ewha Womans University in Korea collaborated in a new study of the degradation in blue phosphorescence OLED materials. This study demonstrate the importance of controlling exciton-induced electron transfer, and more importantly provides strategies for the design of longer-lasting blue PHOLED materials.

Degradation study of blue PHOLED, exciton-inducted (Samsung/Ewha)

The researchers say that the study reveals the charge-neutral generation of polaron pairs (radical ion pairs) by electron transfer from the dopant to host excitons. According to the study, device lifetime correlates linearly with the rate constant for the annihilation of the radical ion pair.

UDC reports an excellent Q4 2017, but guidance for 2018 is lower than expected

Universal Display reported its financial results for Q4 2017. Revenues reached a record $115.9 million, up 55% from $74.6 million in Q4 2016. Revenues from material sales were $59.8 million (up 105% from $29.2 million in Q4 2016). Net income was $57.9 million (up from $23.1 million in Q4 2016).

UDC emitter and host materials photo

UDC concluded a very successful 2017. Revenues were $335.6 million (up 68% from $198.9 in 2016) and net income was $103.9 million (up from $48.1 million in 2016). Net income included a onetime charge of $11.5 million from the Tax Cuts and Jobs Act. Net cash generated in 2017 was $133 million.

ETNews: Samsung is developing hybrid QD-OLED TVs

ETNews posted an interesting article, claiming that Samsung Display is developing a new TV technology that combines OLED emitters with quantum-dot photo-luminescence materials. The basic idea is to use blue OLED emitters and then convert the blue light to white light using quantum-dots combined with color filters (QDCFs) to add red and green colors.

Samsung OLED TVs (2013)

This seems to be a rather complicated design, but it could be much easier to produce compared to a true RGB OLED TV, as there is no need for precise OLED patterning. This is similar to LG's WRGB OLED TVs which use a white OLED source (made from yellow and blue emitters) and color filters on top.

Cynora presents a new blue TADF emitter, aims to meet LGD's and SDC's specification soon

German TADF developer Cynora recently participated in the international OLED summit in China, and the company presented its latest blue TADF material that features a CIEy of 0.18, EQE of 21% and a lifetime of 10 hours LT97 at 700 nits. This is an improvement of the material shown in September 2017 (which had the same specification but with a lower EQE of 14%).

Cynora reports that during the last 24 months, the company achieved its most important goals - high efficiency and a satisfying color point. It has made "tremendous progress" in the last year on the lifetime front and is now close to commercial lifetime specification.

UDC reports another excellent quarter, raises 2017 guidance

Universal Display reported its financial results for Q3 2017. Revenues in the quarter reached $61.7 million, up 104% from Q3 2016 ($30.2 million) driven by strong material sales and also increased royalty and license fees. Net income in the quarter was $13.5 million (up $15 million from a $1.5 million loss in Q2 2016).

UDC emitter and host materials photo

UDC's material sales increased 100% from Q3 2016 to reach $12 million, while royalties and license fees increased 131% to reach $12 million. UDC increased its revenue guidance for the full year 2017 to $310 million to $320 million. Revenues in the first nine months were $219.8 million.

Updates from the TADF symposium: Cynora's latest blue, SDC and LGD hopeful on TADF

A few days ago, Cynora hosted the 2017 International TADF Symposium in Frankfurt, Germany. Cynora reports that about 150 attendees from all over the world listened to experts from the industry and academia and were updated on the latest news regarding TADF OLED emitters.

TADF Symposium photo 2017

Cynora itself showed an update on its latest blue emitter. The company now has material that features a CIEy of 0.18 (target - 0.1), EQE of 14% (target 15%) and a lifetime of 10 hours LT97 at 700 nits (target is over 100 hours). Cynora says that development is progressing well and it is confident it will reach its target material performance by the end of the year.

Cynora announces its Series-B funding round, raises €25 million from Samsung and LG

Cynora announced that it finalized its Series-B funding round. Both Samsung (via Samsung Ventures) and LG Display participated in this round which totaled €25 million. Both LGD and samsung will also establish separate joint development efforts to assist in advancing Cynora's R&D.

Cynora did not disclose how much did each company invest, although earlier reports suggested that LG invested €15 million while Samsung invested €10 million.

UDC reports excellent Q2 2017 results, progresses on blue

Universal Display reported excellent financial results for Q2 2017. Revenues increased 59% (compared to Q2 2016) to $102.5 million, with material sales increasing 110% to $46.8 million. Net income increased $25.4 million to $47.2 million.

UDC PHOLED materials photo (2017)

UDC has $380 million in cash and equivalents, and is on the lookout for opportunities to use this money. UDC also increased its guidance for 2017 to be in the range of $285 million to $300 million.

Cynora edges closer to a 460nm deep-blue TADF emitter

In May 2017 Cynora announced a new blue TADF emitters that achieves a 15% EQE at 1000 nits with an emission peak of 470 nm and a LT97 of > 90 hours (at 700 nits) on a device level. Cynora has stated several times that it aims to commercialize its first highly efficient blue TADF emitter by the end of this year.

According to Cynora, the performance requested from customers is an EQE (at 1000) of over 15%, a lifetime (LT97 at 700 nits) of over 100 hours and a wavelength of 460 nm (color purity FWHM 60 nm).